Peters



vsignated by the same letters of reference.

iituited states N' .abeti dtjlilw.

Letters Patent No. 94,488,

dated September 7, 1869.

l IMPROVEMENT IN COTTON-GINS.

The Schedule referred to in these Letters Patent and making part' oi the same.

To all whom 'it may concern:

Bc it known that I. BENJAMIN D.GULLETT, of Amite city, parish of St. Helena, Louisiana, have invented, made, and applied to use, certain Improvements in the Construction of Cotton-Glos; and-I do declare that the following is a full, clear, and correct description of the same, reference being had to the accompanying drawings, making part of this specification, and to the letters of reference marked thereon, in which- Figure lis a view of the ibrward end of the machine, showing the hinged drawer applied to the same.

Figure 2 is a view of the means employed by me, for adjusting the shaft supporting the circular saws.

Figure 3 is a view of the rear end of the machine, showing the perfbrations in the main cylinder.

Figure 4 is aside view` of my improved cotton-gin, showingthe hollow cylinder employed by me. 4

Figure 5 is a longitudinal verticaT'central section ofn the giu.

ln the drawings, like parts of the invention are de- T'hc nature of the present invention consists- ((1,) in combining with a cotton-gin a hinged drawer, to receive the dust or other foreign matter that may be separated from the cotton as it passes between the circular saws and the revolving brushes.

(11,) in a novel means of adjusting the shaft supporting the circular saws.

lhe'object of the invention is. to prom'de a receptacle for the dust, dirt, or foreign mat-ter thatl may be separated from the cotton during the strippingprocess, to enable. the operator to readily correct any loss motion incident to the shaft supporting and carrying the same; and, finally, to expedite the delivery of the ginned cotton from the machine, as more fully hereinafter described.

As my improvements only relate to the points just recited, I will describe them, so that those familiar with the construction of cotton-gins may make and use` them.

lhe rst point. is the application of a drawer or shelf, to receive the dust or foreign matter that may be separated from the .cotton during the strippingprocess.

This drawer, which -is designated as A in the drawings, is placed directly beneath the circular saws B, held and carried upon the shaft (l.

This drawer occupies an inclined position at the front end of the machine, and is hinged, at its upper end, so as to be lowered or dropped when desired, and when placed in position is secured there by a springcatch hearing upon its forward end. It is placed diectly beneath the circular saws, so that all dust, dirt, or foreign matter, that may he separated from the cotton by the passage of the same between the bars D and the saws, may be received by it and not follow the fibre through the machine.

The addition of a drawer, so constructed and operated, will be found a feature of great utility in a cotton-gin.

I will now speak of the second feature of my invention, namely, the means of correcting any loss motion7V that may attend the working of the shaft C, supporting and carrying the saws B.

This shaft C is supported in boxes E, secured upon the frame lof the machine, and frequently it becomes necessary to set the shaft C so that the saws B sha-ll enter the spaces between the bars or strips of metal D, supported within and forming the. bottom, so to speak, of a cover, G.

The saws, from loss f'motion, sometimes have their position changed, and itis to correct and adjust` them that the second feat-ure ofmy invention relates to.

Within the boxes supporting the shaft, I place lplates'of metal provided with the wedgesc and c2, and

in the sides of the boxes are inserted the set-screwsf, the forward ends of which hear against the wedges c,

yso that 'when operated from thtl outside, they will move forward or advance the wedges c and c2.

Over the shaft is passed aplate of metal, o, the face of which, in one case, bears directly against the pinion H, while its lower portions are bent inward, and inserted within the boxes, so that they shall have a bearing upon or against the wedges e and e2.

As the screw is advanced, and, in turn, advances the wedges e and e2, the plate of metal o is thrown out, and, bearing aga-inst the pinion H,`throws the same ont also, the pinion, being secured firmly upon the shaft, carries the same with it, until the saws are brought into their 'proper position relatively to the bars or strips of metal D. If the adjustment is to be in the opposite direction laterally, the screw upon the opposite side is manipulated, and the plate, in this case, bearing against the blank-wheel W, secured upon the shaft C, the same carries with it laterally the lshaft O. Thus, it will be seen that the adjustment laterally of the shaft C can be readily accomplished, which will be found advantageous in many cases.

The last feature of the invention Vconsists in the means used by me to expedite the delivery ofthe cotton from the machine, after it has passed through the final process of cleaning, which is done between the brnshcsand the horizontal saws upon the hollow cylinder I. c

This consists in providing the cylinder l with a series of perforations, p p, upon its face and between the horizontal saws T. The cylinder l), thus perforated, acts, when in revolution, as a suction-fan, of

which the horizontal saws T form the wings.y Its operationlis to draw in air through'the open ends of the cylinder, and force it out through the perforations 1J p, 85e., in currents which blow the cleansed cotton iibre before them into a proper receptacle. Thus, as

the cotton is delivered from contact with the brushes and horizontal saws, the currentsl of air that issue from the perforations upon4 or in the face of the cylinder carrying the horizontal saws, blow the ibreinto the receptacle placed -at its rear end, from which it may be removed' at pleasure.

` Ihe accompanying drawings show a cotton-gin made in accordance with Letters Patent previously granted'v me, reference' to which may be had that 'the construction and operation of the entire machine may be understood, the present application only being .made by me to protect the new featuresv herein described.

vThe addition of thesefeatures to the cottongin already patented by Lne,;increases the value and utility of the machine very greatly.

Having thus described my improvements, What I claimas new, and desire to secure by Letters Patent, is

B. D. GULLETT.

Witnesses: I

H. W. H nNLnY, v A. SIDNEY DoANE.

1*. Combining, with a cotton-gin, avdrawer, hinged p and secured vas shown, for, the purposes herein fully set 

